Pipe and nut wrench



c. McCARTER.

PIPE AND NUT WRENCH.

APPLICATION FlLED JAN.6, 1920.

1,374,748; Patented Apr. 12, 1921.

' WITNESSES I 7 E mmvron lfilh (I 11 I 11 3 65% A TTORNEYS UNITED I TSVTATES P OFFICE.

CHARLES MecAnrEn, oFnEoArUn, 'IL'LINOIS.

' PIPE AND NUT WRENCH.

Specification of Letters Patent. 3 Patented Apr. 12, 1921.

. Application filed January 6, 1920.. Serial No. 349,727.

To all it concern.

'Be it known that LiCrrAnnns Mo CARTnR, a citizen of the United States, and a resident of Decatur, in the county of Macon and State of Illinois, haveinvented a new and useful Pipe and NutWrench, of which the following is a full, clear, and exact description.

This invention relates to wrenches and particularly to an improved nut and pipe wrench which has for an object to provide an improved quick setting feature whereby the parts may be quickly and easily set to the desired size.

.Another object of the invention is to provide a wrench in which a quick setting feature is embodied and also means for look ing the movable jaw in any set position.

In the accompanying drawing:

Figure 1 is a side view with certain parts broken away, illustrating an embodiment of the invention.

Fig. 2 is a view similar to Fig. 1 except that the sliding jaws are in an unlocked position.

Fig. 3 is a fragmentary sectional view through Fig. 1 on line.33.

Fig. 4 is an end view of a pair of locking wedges embodying certain features of the-invention.

Referring to the accompanying drawing by numerals, lindicates a handle merging into a shank 2 which carries a stationary head 3 having a nut jaw 1 and a pipe jaw 5. If desired the pipe jaw 5 could be made of some other shape, as for instance at the opposite angle to the jaw 6 so as to produce an alligator effect. The jaw 6 is arranged on the sliding sleeve 7 which sleeve also carries a movable jaw8 coacting with aw 4 while jaw 6 coacts with jaw 5. 'The sleeve 7 may be made in any suitable manner, but it has been found convenient to makethe same in two parts as shown in Fig. 3 and connect the parts together by suitable bolts or rivets 9, whereby the jaw 6 issolid and is integral with the remaining part of the sleeve 7 while the jaw 8 is also integral with sleeve 7. It is, of course, understood that removable faces could be provided for any of the jaws without departin from the spirit of the invention. Sleeve 7 adjacent the side of the shank 2 carrying the teeth 10 is provided with a hollowed out portion or chamber 11 in which a locking cam 12 and a shifting cam 13 are positioned. The lockit will be seen that tongues 16 and 17am provlded for the'cams and corresponding groovesl The cam 13 is normally ur ed to the position shown in Fig. 1 by a spring 18 having a suitable seat at 19 in the cam 13 and a seat 20 in the sleeve 7. The sleeve 7 is provided with an opening or passageway 21 in which the neck 22 of the cam 13 is positioned and in which it freely slides back and forth, said neck merging into a knob or pull 23 which is easily grasped by theoperator for pulling the cam 13 from the position shown in Fig. 1 to that shown in Fig. 2. As the cam 13 is moved rearwardly, or in a direction wayfrom the jaw 6, the cam action of the tongues 16 and 17 "will cause the cam 12 to move away from the shank 2 so that teeth 24 on the cam 12 will become disengaged from the teeth 10 on shank 2.

As shown inFig. 3 the neck 22 and the knob 23 are both hollowed out for receiving a pivotally mounted latch 25, held in position by a suitable pivotal pin 26 and provided with a thumb member 27 and with a locking pin or extension 28 designed to fit into the respective recesses 29 and 30' under different circumstances. Theund'er side of sion 32 in knob 23 in order to resiliently urge the catch to the position shown in Fig.

3. When the parts are in the position y shown in Fig. 1, and it is desired to shift the movable jaws 6 and 8, the thumb member 27 is depressed against the action of spring 31 which will cause the pin or projection 28 to move out of the socket 29. When this has been done the knob or. pull 23 may be moved to the rear so that the parts will assume the position shown in Fig. 2, after which the thumb. member 27 is released. Upon releasing the thumb member the pin or projection 28 will automatically the thumb member 27 is engaged by a'spring i 31, which spring is also seated in a depresthe sleeve to be locked in a set position sol risin a shank a stationar 'aw arran ed on the shank, a sleeve slidingly mounted on said shank formed with a jaw co-acting with the stationary jaw, said sleeve being formed hollow and with an opening facing the shank and an opening in the end arranged parallel with said shank but spaced therefrom, a cam arranged in said sleeve formed with a surface for engaging the shank, and an inclined surface on the opposlte side, a shifting cam'havlng a beveled surface engaglng said lnchned surface, said shifting cam having a hand-hold projecting through the second mentioned opening in said sleeve, said sleeve being provided with a plurality of notches, a pivotally mounted catch arranged in said hand-hold provided with a thumb member and witha projection adapted to fit into one of said notches for looking the shifting cam in any desired po-, 25

sition.

' v CHARLES MCCARTERQ 

